Z390 Auros master MB i9-9900k RTX 2080ti - Driver 457.09 both on custom water loop 64GB ram NVMe M.2 1000 watt EVGA Power supply I have been trying to figure this out since Beyond Light released. I have found the issue. The game is not utilizing multicore on the CPU or something, and part of the issue is the new Reflex junk NVidia released. I noticed my CPU temps were low compared to pre Beyond Light. The game is not using multicore. When I changed: "force_enable_multi_threaded_render_submit" to 1, and "low_latency_mode" to 0 in the Cvars file, my framerate and CPU temps went back to pre Beyond Light values. The only downside is the "force_enable_multi_threaded_render_submit" set to 1 causes the game to have lots of flickering artifacts. If the artifacts can be fixed, my game will be normal again. before Beyond light 1440p + 135% render res, the game never dropped below 100 fps. After Beyond light 1440p + 100% render res dropping into the 60-70's. After changing these values, my pc is back to 100+ fps at 135% render res and 1440p with flickering. Please bungie look into this.